src/panels/information/informationpanelcontent.h

   1 /***************************************************************************
   2  *   Copyright (C) 2009-2010 by Peter Penz <peter.penz19@gmail.com>        *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #ifndef INFORMATIONPANELCONTENT_H
  21 #define INFORMATIONPANELCONTENT_H
  22
  23 #include <KFileItem>
  24 #include <config-baloo.h>
  25
  26 #include <QPointer>
  27 #include <QUrl>
  28 #include <QWidget>
  29
  30 class KFileItemList;
  31 class PhononWidget;
  32 class PixmapViewer;
  33 class PlacesItemModel;
  34 class QPixmap;
  35 class QString;
  36 class QLabel;
  37 class QScrollArea;
  38
  39 namespace KIO {
  40   class PreviewJob;
  41 }
  42
  43 #ifndef HAVE_BALOO
  44 class KFileMetaDataWidget;
  45 #else
  46 namespace Baloo {
  47     class FileMetaDataWidget;
  48 }
  49 #endif
  50
  51 /**
  52  * @brief Manages the widgets that display the meta information
  53 *         for file items of the Information Panel.
  54  */
  55 class InformationPanelContent : public QWidget
  56 {
  57     Q_OBJECT
  58
  59 public:
  60     explicit InformationPanelContent(QWidget* parent = nullptr);
  61     ~InformationPanelContent() override;
  62
  63     /**
  64      * Shows the meta information for the item \p item.
  65      * The preview of the item is generated asynchronously,
  66      * the other meta information are fetched synchronously.
  67      */
  68     void showItem(const KFileItem& item);
  69
  70     /**
  71      * Shows the meta information for the items \p items and its preview
  72      */
  73     void showItems(const KFileItemList& items);
  74
  75     KFileItemList items();
  76
  77     /**
  78      * Refreshes the preview display, hiding it if needed
  79      */
  80     void refreshPreview();
  81
  82 signals:
  83     void urlActivated( const QUrl& url );
  84
  85 public slots:
  86     /**
  87      * Is invoked after the file meta data configuration dialog has been
  88      * closed and refreshes the displayed meta data by the panel.
  89      */
  90     void refreshMetaData();
  91
  92 protected:
  93     /** @see QObject::eventFilter() */
  94     bool eventFilter(QObject* obj, QEvent* event) override;
  95
  96 private slots:
  97     /**
  98      * Is invoked if no preview is available for the item. In this
  99      * case the icon will be shown.
 100      */
 101     void showIcon(const KFileItem& item);
 102
 103     /**
 104      * Is invoked if a preview is available for the item. The preview
 105      * \a pixmap is shown inside the info page.
 106      */
 107     void showPreview(const KFileItem& item, const QPixmap& pixmap);
 108
 109     /**
 110      * Marks the currently shown preview as outdated
 111      * by greying the content.
 112      */
 113     void markOutdatedPreview();
 114
 115     void slotHasVideoChanged(bool hasVideo);
 116
 117 private:
 118     /**
 119      * Sets the text for the label \a m_nameLabel and assures that the
 120      * text is split in a way that it can be wrapped within the
 121      * label width (QLabel::setWordWrap() does not work if the
 122      * text represents one extremely long word).
 123      */
 124     void setNameLabelText(const QString& text);
 125
 126     /**
 127      * Adjusts the sizes of the widgets dependent on the available
 128      * width given by \p width.
 129      */
 130     void adjustWidgetSizes(int width);
 131
 132 private:
 133     KFileItem m_item;
 134
 135     QPointer<KIO::PreviewJob> m_previewJob;
 136     QTimer* m_outdatedPreviewTimer;
 137
 138     PixmapViewer* m_preview;
 139     PhononWidget* m_phononWidget;
 140     QLabel* m_nameLabel;
 141 #ifndef HAVE_BALOO
 142     KFileMetaDataWidget* m_metaDataWidget;
 143 #else
 144     Baloo::FileMetaDataWidget* m_metaDataWidget;
 145 #endif
 146     QScrollArea* m_metaDataArea;
 147
 148     PlacesItemModel* m_placesItemModel;
 149 };
 150
 151 #endif // INFORMATIONPANELCONTENT_H